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Giant magnetoimpedance in composite wires with insulator layer between non-magnetic core and soft magnetic shell

N. A. Buznikov·A. S. Antonov·A. B. Granovsky·C. G. Kim·C. O. Kim·X. P. Li·S. S. Yoon
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Abstract

A method for calculation of the magnetoimpedance in composite wires having an insulator layer between non-magnetic core and soft magnetic shell is described. It is assumed that the magnetic shell has a helical anisotropy and the driving current flows through the core only. The distribution of eddy currents and expressions for the impedance are found by means of a solution of Maxwell equations taking into account the magnetization dynamics within the shell governed by the Landau-Lifshitz equation. The effect of the insulator layer on the magnetoimpedance is analyzed.

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N. A. Buznikov, A. S. Antonov, A. B. Granovsky, C. G. Kim, C. O. Kim, X. P. Li, S. S. Yoon. 2005-11-16. Giant magnetoimpedance in composite wires with insulator layer between non-magnetic core and soft magnetic shell. https://doi.org/10.1016/j.jmmm.2005.10.149

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